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CCNA 1 R&S Introduction to Networks Chapter 5 QUIZ

1 Fill in the blank.
The Ethernet “_________” sublayer is responsible for communicating directly with the physical layer.

Correct AnswerMAC

Mac

mac

2 Which two functions or operations are performed by the MAC sublayer? (Choose two.)

It is responsible for Media Access Control.*
It performs the function of NIC driver software.It adds a header and trailer to form an OSI Layer 2 PDU.*
It handles communication between upper and lower layers.
It adds control information to network protocol layer data.

3 What is a characteristic of a contention-based access method?

It processes more overhead than the controlled access methods do.
It has mechanisms to track the turns to access the media.It is a nondeterministic method.*
It scales very well under heavy media use.

0.0.0.0
255.255.255.255FFFF.FFFF.FFFF*
AAAA.AAAA.AAAA
the physical address of the destination host

9

Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next?

RT1 will forward the ARP request to PC3.RT1 will send an ARP reply with its own Fa0/0 MAC address.*
RT1 will send an ARP reply with the PC3 MAC address.
SW1 will send an ARP reply with its Fa0/1 MAC address.
RT1 will send an ARP reply with its own Fa0/1 MAC address.

10

Refer to the graphic. H2 has sent a broadcast message to all of the hosts. If host H1 wants to reply to the broadcast message, which statement is true?

H1 sends a unicast message to H2, but the switch forwards it to all devices.H1 sends a unicast message to H2, and the switch forwards it directly to H2.*
H1 sends a broadcast message to H2, and the switch forwards it to all devices.
H1 sends a multicast message to H2, and the switch forwards it directly to H2.

11 Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

It drops the frame.It sends the frame to all ports except the port on which it received the frame.*
It sends the frame to all ports that are registered to forward broadcasts.
It sends the frame to all ports.

12 Which term defines the processing capabilities of a switch by rating how much data can be processed per second?

switching rateforwarding rate*
port density
form factor

13 Which interface command must be entered in a Layer 3 switch before an IPv4 address can be assigned to that interface?